Furnace attachment.



J. FLOOD. l. FURNAGB ATTACHMENT. APPLIGATION FILED Nov. 14, 1910.

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Wirt/www0 J. H0013. FUBNAGBATTACHMBNT. v

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5 I s l s l I l Swen/tofu athnmup JOHN FLOOD, OF ASHTABULA, OHIO.

rUnNAcE ATTACHMENT.

Specification oi" Letters Patent.

Patented vJu1y23,

Application filed November 14, 1910. Serial No. 592,372. j

To all whom t may concern the extending upperedges :of fthe'jaicket;

Be it known that I, JOHN FLOOD, 'a citiabove the .top 5 is filledwithmineral Wool 01j; zen of the United States, residing at Ashtaothernon-heatlconducting ma`teri'al. The fbi bula, in the county of Ashtabulaand State lower end of the jacket 4- is drawn 'inwardly 60 5l of Ohio,have invented certain new and iseful Improvements in FurnaceAttachments; and l do declarethe following to be a full, clear, andexact description of the invention, such as will enable others skilledin the art to which it appertains to lmake and use the same.

This invention relates to attachments for furnaces.

v( )ne object of the invention is to provide an attachment for furnaceswhereby the waste heat radiating from the sides of the furnace and fromthe smoke and heat conducting pipes is retained and utilized forincreasing the heat of the furnace and at the 2o same time keeping thefurnace room or cellar cool. l

`Another object isv to provide means for controlling and regulating thewaste heat collected by the attachment.

With the foregoing and other objects in view, the invention consists ofcertain novel features of construction, combination and arrangement ofparts as will bebmore fully described and particularly pointed out 'in'so the appended claims.

In the-accompanying drawings: Figure 1 is a diagrammatic view of afurnace and portion of a building showing the applica tion of theinvention; Fig. 2 is a vertical sectional view of the upper portion 'ofthe Referring more particularly to the drawings, l denotes a furnacecasing, 2 one of the hot air conducting pipes and?) the smoke pipe of afurnace. vThese parts may be of the usual or any desired construction. v

'Arranged around theupper portion of the l furnace casingvl vand spacedasuitable distanceV therefrom is an asbestos heat collecting jacket 4i,the upper end of which projects a"'suitab le distance above the top ofthe furnace casing and hasarranged ltherein ahead or'top 5, which is setbelow the uppervv edge of tlie 'jaoketand spaceda suitable distanceabove the top of the furnace casing,

preferably by .spacing lugs 6, toform a liot air collecting space 7.VThe space formed by and "securely bound or fastened-tol theA outervside of the casing l by a lowerfclam'ping band 8, while the upper end ofthe 'jacket' hasengaged therewith an upper-'clamping band 9. At thefront side ofthe-furnace' 65 the jacket is cutout and secured to theyadjacent'surface ofthe furnace casing'l in any'v suitable mannerv toVprovide access top the doors of the furnace. 'In theA sides of` thejacket where the saine is drawnI-in at-fits 'I0 lower edge and fastenedto the' lower casing isformed a series of cold air ,inlet ports orpassages 10,througli which cold air 7,;

passes and is'heated in the jacket by the heat radiating from the sidesof the casing.

The hot-air conducting lpipes 2 one of which is shown inthe drawings,are each provided with an asbestos jacket .'11, said jackets beingspaced a suitabledistance from the outer sides of thepipe to forman '80air space which is open' at the inner end of the jacket or this 'end maybe provided with a series of cold airinlet passages. 'In the upper sideyof the outer portion ofthe pipe 2 or at the point where the elbow isen# Ag-aged therewith to connect the pipe Vto the heating pipeleading tothe registeris formed a hot air inlet'p'assagej1'2 below which in theadjacent end of the pipe is ar.- ra'nged an inclined heat deflectingplate'l by means ofwhich the hot airvfrom the space between the jacketand the pipeis y admitted .and directed V-on through the pipe,

Awhile the hot air from the furnace will lbe prevented from passing outofthe aperture 12 and will be directed on up through the pipe to theregister.'

Connected at one end to the inner end of the pipe 2'and at its'oppositeend to the4 jacket 4 is a hot air conducting pipe 14 by loins means ofwhich the hot air accumulating-ini. the upper portion of the spaceformed be-f A tween the furnace jacket 4 and the` casing 1 1--isconductedanddischarged into the hot air 1,- l

pipe 2. In the'pipe/lefis arangeda damper 105 .bylmeans of which theassage ofy the f-x". heated air from the space o-rmed by .thel'jacket-et to the hot air pipe2 is cntrolledl".

In the inner end of the pipe 2 .isnalso ar'- ranged the usual heatcontrollingfdampei"119 16 whereby the hot-air passing through ,the' pipe2 from the furnace controlled.y

The smoke pipe 3 is also providedi'witli an asbestos jacket 1G which isspaced a suitable distance from the smoke pipe and is open at its innerend and closed at its outer end as shown. Vith the jacket 16 near itsouter end is conducting pipe 17 the inner end of which is connected tothe jackets: opposite to the hot air' collecting space 7 arrangedbetween the upper end of the furnace casing and the top 5 of the jacketas shown.

By thus inclosing the furnace and the hot-air .and smoke conductingpipes it will be readily seen that all of the heat radiating from theseparts Will collected and conducted to the registers thereb nace andreducing the amount of fuel required. It will also be seen that bvinclosing the furnace and the hot-air conducting ,pipes in the'inannerdescribed the furnace will be prevented from heating the furnace room orcellar in which the same is loca'tedA j invention will :be readilyunderstood without j requiring amore extended Various changes in theform proportion explanation.-

and the minor details of construction may be resorted to withoutdepaiting from the' principle or sacrificing any of the advantages ofthe invention as defined in the appended claims.

Having thus' what Iclaam is: A

l. Anfattachment for furnaces comprisdescribed my invention,

ing a furnace jacket of non-heat conducting material, said jacketsurrounding` the furnace casing and spaced therefrom and having at itslower portion air openings, means to secure said jacket to the furnacecasing, smoke and hot air pipes, non-heat radiating jackets arrangedaround the pipes and spaced therefrom, said jackets being open at theirlower ends, a hot air conducting pipe connecting the jacket on the smokeconnected a hot airA greatly, increasing the heating capacity o thefurpipe with the ing and its jacke 2. An attachment for furnacescomprising an asbestos iacket arranged around the furnacev casing andspaced from said casing and having at its lower end air inlet openings,a top arranged in t-lie upper end of said jacket and spaced a suitabledistance above the top of the furnace casing, a filling of non-heatconducting-material forming the top of said jacket, a hot air conductingpipe connected to the furnace casing and having near its outer end a hotair inlet passage, a heat detlecting plate arranged below said passage,an asbestos jacket arranged around said pipe and spaced therefrom toform a heat controlling` and conducting space, said jacket being closedatV its upper end and open at its lower end, a hot air conducting pipeto connect the lower' end of said jacket with the upper portion of thejacket surrounding the furnace casing, a hot air controlling damperarranged in said pipe, a hot air collecting jacket arranged Aaround andispaced a suitable distance from the smoke pipe of the furnace, a hot airconducting pipe to connect the upper end of .said smoke pipe jacket withYthe furnace casing` jacket, wherebythe hot air collected by thesmokepipe jacket is conductcdto the space4 inclosed by the furnace casingjacket.

l'n testimony whereof I have hereunto set my hand in presence of twosuliscribing witncsses.

.JOHN FLOOD. tWitnesses J. H. MCG-Irrtum', T. E. GREEN,

